The data sheet omits any info on the polarity of the speaker for some reason. I would think that would be an obvious thing to call out. Nothing exists on the actual unit either. How to determine polarity?
If you want to test the polarity on the speaker you can perform a “Pop Test” using either a 1.5v or 9v battery and connecting it to the terminals of the speaker. If the cone moves outward That means the positive terminal of the battery is connected to the positive terminal of the speaker and the negative to the negative. If the cone moves inward the polarities are reversed.